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149 lines
3.1 KiB
C
149 lines
3.1 KiB
C
/*
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* $Id: mouse.c,v 1.20 2012/12/21 10:00:30 tom Exp $
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*
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* mouse.c -- mouse support for dialog
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*
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* Copyright 2002-2007,2012 Thomas E. Dickey
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License, version 2.1
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to
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* Free Software Foundation, Inc.
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* 51 Franklin St., Fifth Floor
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* Boston, MA 02110, USA.
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*/
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#include <dialog.h>
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#include <dlg_keys.h>
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#if USE_MOUSE
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static int basex, basey, basecode;
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static mseRegion *regionList = NULL;
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/*=========== region related functions =============*/
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static mseRegion *
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find_region_by_code(int code)
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{
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mseRegion *butPtr;
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for (butPtr = regionList; butPtr; butPtr = butPtr->next) {
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if (code == butPtr->code)
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break;
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}
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return butPtr;
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}
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void
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dlg_mouse_setbase(int x, int y)
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{
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basex = x;
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basey = y;
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}
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void
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dlg_mouse_setcode(int code)
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{
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basecode = code;
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}
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void
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dlg_mouse_mkbigregion(int y, int x,
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int height, int width,
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int code,
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int step_y, int step_x,
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int mode)
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{
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mseRegion *butPtr = dlg_mouse_mkregion(y, x, height, width, -DLGK_MOUSE(code));
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butPtr->mode = mode;
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butPtr->step_x = MAX(1, step_x);
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butPtr->step_y = MAX(1, step_y);
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}
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void
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dlg_mouse_free_regions(void)
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{
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while (regionList != 0) {
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mseRegion *butPtr = regionList->next;
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free(regionList);
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regionList = butPtr;
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}
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}
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mseRegion *
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dlg_mouse_mkregion(int y, int x, int height, int width, int code)
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{
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mseRegion *butPtr;
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if ((butPtr = find_region_by_code(basecode + code)) == 0) {
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butPtr = dlg_malloc(mseRegion, 1);
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assert_ptr(butPtr, "dlg_mouse_mkregion");
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butPtr->next = regionList;
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regionList = butPtr;
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}
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if (butPtr != 0) {
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butPtr->mode = -1;
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butPtr->step_x = 0;
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butPtr->step_y = 0;
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butPtr->y = basey + y;
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butPtr->Y = basey + y + height;
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butPtr->x = basex + x;
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butPtr->X = basex + x + width;
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butPtr->code = basecode + code;
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}
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return butPtr;
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}
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/* retrieve the frame under the pointer */
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static mseRegion *
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any_mouse_region(int y, int x, int small)
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{
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mseRegion *butPtr;
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for (butPtr = regionList; butPtr; butPtr = butPtr->next) {
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if (small ^ (butPtr->code >= 0)) {
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continue;
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}
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if (y < butPtr->y || y >= butPtr->Y) {
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continue;
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}
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if (x < butPtr->x || x >= butPtr->X) {
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continue;
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}
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break; /* found */
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}
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return butPtr;
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}
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/* retrieve the frame under the pointer */
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mseRegion *
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dlg_mouse_region(int y, int x)
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{
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return any_mouse_region(y, x, TRUE);
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}
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/* retrieve the bigframe under the pointer */
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mseRegion *
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dlg_mouse_bigregion(int y, int x)
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{
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return any_mouse_region(y, x, FALSE);
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}
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#else
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void mouse_dummy(void);
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void
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mouse_dummy(void)
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{
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}
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#endif /* USE_MOUSE */
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